/*
 *    Copyright 2011-2012 The Hook Team
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
package org.hook.core.orm.mybatis;

import net.jcip.annotations.ThreadSafe;

import org.hook.core.ApplicationConstants;

/**
 * MyBatisDataSource切换线程上下文
 * 
 * @author suwuqiang 2011-8-18
 */
@ThreadSafe
public class MyBatisDataSourceContextHolder {
	private static final ThreadLocal<String> contextHolder = new ThreadLocal<String>() {
		protected synchronized String initialValue() {
			return ApplicationConstants.DATA_SOUCE_TARGET_DEFAULT_DB;
		}
	};

	public static void setDataSourceType(String dataSourceType) {
		contextHolder.set(dataSourceType);
	}

	public static String getDataSourceType() {
		return contextHolder.get();
	}

	public static void clearDataSourceType() {
		contextHolder.remove();
	}
}
